Re: [免感] 魏正宗醫師的考題

[craigzeck (叫我阿克)]

※ 引述《craigzeck (叫我阿克)》之銘言：
: 剛剛發現
: 91藍忠亮+蔡嘉哲-1 的35-41是魏正宗醫師的範圍
: 我做的答案是 E C(不確定,不知道BSAPP的型態是什麼) A D(不確定) D E E
: 不知道大家有沒有更好的答案
剛剛上網查了一下
Changes with myopathy:
The number of motor units remains normal, and therefore the interference
pattern is normal except in the very late stages. The individual units are
smaller because some muscle fibers have dropped out. The motor unit
potentials are, therefore, on the average, smaller in amplitude and shorter
in duration. More units must be fired to produce a particular strength of
contraction, so the full interference pattern is achieved earlier. Polyphasic
potentials are also seen. The EMG picture of brief, small-amplitude,
abundant, polyphasic potentials (BSAPP) is characteristic (although not
pathognomonic) of myopathy. Although usually the muscle is silent at rest,
fibrillations can occur, and are often seen in persons with polymyositis,
perhaps a result of denervation caused by damage to the intramuscular nerves.
所以36題應該確定是C吧

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